/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayCueManager.h
Handles what to do if a missing cue is requested. If return true, this was loaded and execution should continue
virtual bool HandleMissingGameplayCue ( [UGameplayCueSet](API\Plugins\GameplayAbilities\UGameplayCueSet) * OwningSet, struct [FGameplayCueNotifyData](API\Plugins\GameplayAbilities\FGameplayCueNotifyData) & CueData, [AActor](API\Runtime\Engine\GameFramework\AActor) * TargetActor, [EGameplayCueEvent::Type](API\Plugins\GameplayAbilities\EGameplayCueEvent__Type) EventType, [FGameplayCueParameters](API\Plugins\GameplayAbilities\FGameplayCueParameters) & Parameters )